Question

should he see you, he would be surprised.

begin with were

Answer 1

Were he to see you, he would be surprised.

Hope this helps!!! :)

Answer 2

1. Were they told how to do it?

Ans. Were they told how should they do it?

2. You couldn't have seen me last week.

Ans. It couldnt be that you have seen me last week.

3. We had to break the trunk open.

Ans. The trunk had to be broke open.

4. If it escaped, suspicion would automatically fall upon them.

Ans. They would autmatically fall under suspicion if it escaped.